Note 10 - Segment Information (Detail) - Reconciliation of EBIT to Operating Income (USD $) In Millions, unless otherwise specified	3 Months Ended		6 Months Ended
	Jun. 30, 2012	Jun. 30, 2011	Jun. 30, 2012	Jun. 30, 2011
Operating income	$ 91	$ 60	$ 353	$ 298
Other income	9	2	13	3
EBIT	100	62	366	301
Interest expense, net	45	32	92	61
Earnings before income taxes	55	30	274	240
Income taxes	20	11	100	87
Net income	$ 35	$ 19	$ 174	$ 153